<template>
    <div class="goodsinfo-container">
      <!-- 小球跳动 -->
      <transition
      @before-enter="beforeEnter"
      @enter="enter"
      @after-enter="afterEnter">
        <div class="ball" v-show="ballflag" ref="ball"></div>
      </transition>
        <!-- 商品轮播图区域 -->
        <div class="mui-card">
          <div class="mui-card-content">
            <div class="mui-card-content-inner">
              <Swiper :lunbotuList="this.imglist" :isfull="false"> </Swiper>
            </div>
          </div>
        </div>
        <!-- 商品购买区域 -->
        <div class="mui-card">
          <div class="mui-card-header">{{goodsinfo.title}}</div>
          <div class="mui-card-content">
            <div class="mui-card-content-inner">
              <p class="price">
                市场价：<del>￥{{goodsinfo.market_price}}</del>&nbsp;&nbsp;
                销售价：<span class="sell">￥{{goodsinfo.sell_price}}</span>
              </p>
              <p>
                购买数量：<numbox @getCount="getSelectedCount" :max="goodsinfo.stock_quantity"></numbox>
              </p>
              <p>
                <mt-button type="primary" size="small">立即购买</mt-button>
                <mt-button type="danger" size="small" @click="addToShopcar()">加入购物车</mt-button>
              </p>
            </div>
          </div>
        </div>
        <!-- 商品参数区域 -->
        <div class="mui-card">
          <div class="mui-card-header">商品参数</div>
          <div class="mui-card-content">
            <div class="mui-card-content-inner">
              <p>商品货号：{{goodsinfo.goods_no}}</p>
              <p>商品情况：{{goodsinfo.stock_quantity}}</p>
              <p>上架时间：{{goodsinfo.add_time|dateFormat}}</p>
            </div>
          </div>
          <div class="mui-card-footer">
            <mt-button type="primary" size="large" plain @click="goDesc(id)">图文介绍</mt-button>
            <mt-button type="danger" size="large" plain @click="goComment(id)">商品评论</mt-button>
          </div>
        </div>
    </div>
</template>
<script>
import { Toast } from 'mint-ui';
import Swiper from '../subcomponents/Swiper';
import numbox from '../subcomponents/goodsinfo_numbox';

export default {
  data() {
    return {
      id: this.$route.params.id,
      imglist: [],
      goodsinfo: [],
      ballflag: false,
      selectedCount: 1,
    };
  },
  created() {
    this.getImgList();
    this.getGoodsinfo();
  },
  methods: {
    getImgList() { // 获取商品详情图片
      this.$http.get(`api/getthumimages/${this.id}`).then((res) => {
        if (res.body.status === 0) {
          res.body.message.forEach((element) => {
            /* eslint no-param-reassign: "error" */
            element.img = element.src;
          });
          this.imglist = res.body.message;
        } else {
          Toast('获取缩略图列表失败……');
        }
      });
    },
    getGoodsinfo() {
      this.$http.get(`api/goods/getinfo/${this.id}`).then((res) => {
        if (res.body.status === 0) {
          this.goodsinfo = res.body.message[0];
        } else {
          Toast('获取缩略图列表失败……');
        }
      });
    },
    goDesc(id) {
      this.$router.push({ name: 'goodsdesc', params: { id } });
    },
    goComment(id) {
      this.$router.push({ name: 'goodscomment', params: { id } });
    },
    addToShopcar() {
      this.ballflag = !this.ballflag;
      const goodsobj = {
        id: this.id,
        count: this.selectedCount,
        price: this.goodsinfo.sell_price,
        selected: true,
      };
      this.$store.commit('addToCar', goodsobj);
    },
    beforeEnter(el) {
      el.style.transform = 'translate(0, 0)';
    },
    enter(el, done) {
      // eslint-disable-next-line no-unused-expressions
      el.offsetWidth;
      // 获取小球的当前位置
      const ballPosition = this.$refs.ball.getBoundingClientRect();
      // 获得徽标的位置
      const badgePosition = document.getElementById('badge').getBoundingClientRect();
      const xDist = badgePosition.left - ballPosition.left;
      const yDist = badgePosition.top - ballPosition.top;
      el.style.transform = `translate(${xDist}px,${yDist}px)`;
      el.style.transition = 'all 0.5s cubic-bezier(.4, -0.3, 1, .68)';
      done();
    },
    afterEnter() {
      this.ballflag = !this.ballflag;
    },
    getSelectedCount(count) {
      this.selectedCount = count;
    },
  },
  components: {
    Swiper,
    numbox,
  },
};
</script>
<style lang="scss" scoped>
.goodsinfo-container{
  background-color: #eee;
  overflow: hidden;
  .sell{
    color: red;
    font-size: 16px;
    font-weight: bold;
  }
  .mui-card-footer{
    display: block;
    button{
      margin:10px 0;
    }
  }
  .ball{
    width: 15px;
    height: 15px;
    background-color: red;
    border-radius: 50%;
    position: absolute;
    z-index: 99;
    top:390px;
    left: 146px;
  }
}
</style>

